Improved wagon-jack



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' Letters Patent No. 80,768, dass August 4, 186s.

IMPROVED WAGON-JACK.

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T0 ALL WHOM ITMAY-.CONCERM l Be it' known that I, SAMUEL RICE, ofWestford, in the county of Chittenden, and State of Vermont, haveinvented a new and useful Improvement in-Wagon-Jaeks; and I doherebydeclare the following to he e. full clear, and exact'descriptionof the same, reference being had to the 'accompanying drawings, inwhich- Figure 1 is a side elevation of my jack.

Figure 2 is a vertical section of the same. i l

My invention consists in the manner of constructing myjaek, so 'that theweight of the lever may be readily adjusted without being detached fromthe supporting-frame. f

That others may fully understand my invention, I will particularlydescribe it. Y

A. is the base, made ofV stout plank, and having securely bolted tovittwo uprights or posts, B, which are connectedattheir tops, and atintervals, by cross-pieces, C. A rack, D, of 'cast iron, is let into theinner side of each of the posts B, as shown in fig. 2, so that thepoints of the teeth of the lrack will be far enough from the wood of thepost to leave a lclear passage, E, in front'ot' said teeth, throughwhich the fulerum-pin'i` ofthe lever G may traverse in passing`from oneadjustment to another.

'.lhe lever G should be'ot such thickness as to lill loosely the spacebetween the posts, and the pin F is inserted through said lever, andprojects on each side far enough to enter the notches of the rack D; Thenotches in the rack D are formed in the manner shown; that is to say,they are circular, and comprise sectors of about two-thirds of acomplete circle, and from theV ends of said sectors the teeth arepointed, as shown.

This permits an easy entrance for the fulcrum-pinF, and a secure seatfor the same while in operation.

The lever may be provided with hooks, 'H and I, by means of which thejack may be employed to' raise other `heavy weights besides wagons,byplacing said jack` in a suitable position, and attaching thefweight tobe raised, by a chain'for cord, to the hook H. .T he hook' I and shortchain J will serve to hold the lever G with a weight resting upon theother end. I

To change the adjustment-of the lever to adapt it, forsinstance, to highor low axles, it is only necessary to slip the lever forward far enoughto remove the fulcrum-pin out of its seat, and then to raise or depressthe lever until the fulcrurn-pin is opposite the proper notch.

The cast-iron lrack may be constructed with edges bevelled, so that wheninserted in place the wood of the post will overlap the edges of theironin such a way as to retain the iron in place without any otherfastening, and if this plan should be employed, the construction oftheja'ck-would he facilitated by making each post of" two pieces ofplank, a piece being cut from one of said pieces corresponding in shapeand size with their-on rack to be inserted. v i

Having described my invention, what Ifclaim as new, is

The cast-iron racks D D, constructed substantially as described, andinserted in and held by the posts B SAMUEL RICE.

Witnesses:

L. L. Litmanen, A. G. Lucas.

